Synchronous deglacial thermocline and deep-water ventilation in the eastern equatorial Pacific.

ABSTRACT: The deep ocean is most likely the primary source of the radiocarbon-depleted CO₂ released to the atmosphere during the last deglaciation. While there are well-documented millennial scale Δ¹⁴C changes during the most recent deglaciation, most marine records lack the resolution needed to identify more rapid ventilation events. Furthermore, potential age model problems with marine Δ¹⁴C records may obscure our understanding of the phase relationship between inter-ocean ventilation changes. Here we reconstruct changes in deep water and thermocline radiocarbon content over the last deglaciation in the eastern equatorial Pacific (EEP) using benthic and planktonic foraminiferal ¹⁴C. Our records demonstrate that ventilation of EEP thermocline and deep wat

SUBMITTER: Umling NE 

PROVIDER: S-EPMC5264251 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature